CN104312490A - Thickening composition for adhesive for plywood and preparation method of thickening composition - Google Patents
Thickening composition for adhesive for plywood and preparation method of thickening composition Download PDFInfo
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- CN104312490A CN104312490A CN201410570335.7A CN201410570335A CN104312490A CN 104312490 A CN104312490 A CN 104312490A CN 201410570335 A CN201410570335 A CN 201410570335A CN 104312490 A CN104312490 A CN 104312490A
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Abstract
The invention discloses a thickening composition for an adhesive for plywood. The composition is prepared from the following raw materials in parts by weight: 60-100 parts of flour, 30-50 parts of lignin, 30-50 parts of tapioca flour, 3-5 parts of polyvinyl alcohol, 3-5 parts of silicon aluminide and 5-10 parts of a mildew preventive. The invention further discloses a preparation method of the thickening composition for the adhesive for plywood. The preparation method comprises the following steps: A, thermally dissolving polyvinyl alcohol; B, mixing the flour, lignin and tapioca flour in proportion to obtain a mixture; and C, adding the mildew preventative into the mixture in the step B, and then dropwise adding polyvinyl alcohol and silicon aluminide while stirring. The tapioca flour is good in viscidity, so that the composition has very strong adsorbability. Lignin and a wood veneer have relatively strong affinity. The flour is more flexible due to polyvinyl alcohol. According to the composition disclosed by the invention, not only is the production cost lowered, but also the adhering property is further enhanced.
Description
Technical field
The present invention relates to plywood making industry, be specifically related to thickening combination of a kind of Adhesive for plywood and preparation method thereof.
Background technology
Flour is widely used in wood-based plate glued board industry as thickening material, and flour accounts for 5-6% in plywood making cost.Along with the price of flour rises steadily, the cost of glued board also rises thereupon.The flour that current glued board uses mostly is edible flour.The flour price that type Ⅰ plywood uses is about about 2800 yuan/ton, and the flour price that II class, III class glued board use is also at about 2400 yuan/ton.Good flour price is high, as used the flour lower than 2400 yuan/ton of prices, few containing gluten content in its flour, thickening is thickening not, flour is easily separated with glue, makes the tack of glue poor, and plank effect when chilling press carries out precompressed is poor, often precompressed 3-6 hour plank is still loose shape, cannot enter thermocompressor and carry out hot pressing.Because low-quality flour gluten content is few, its bridging property is poor, affects the adhesion effect of tackiness agent.And sound flour is used for the preparation of glued board, is also a kind of consumption excessively for food resource.
Xylogen is a kind of poly phenols be extensively present in plant soma wall, and at occurring in nature, the reserves of xylogen are only second to Mierocrystalline cellulose, and all regenerates with the speed of 50,000,000,000 tons every year.Pulp and paper industry will isolate about 1.4 hundred million tons of Mierocrystalline celluloses every year from plant, obtain the xylogen byproduct of about 5,000 ten thousand tons simultaneously, but up to now, xylogen more than 95% still directly enters rivers with " black liquor " or burns after concentrating, seldom be utilized effectively, because xylogen is not easily degraded under field conditions (factors), it directly discharges and causes severe contamination to environment.How to effectively utilize this kind of renewable resources of xylogen, and reduce environmental pollution, become the study hotspot of numerous scientific research personnel.In wood-based plate industry, the phenolic hydroxyl group of scientific research personnel contained by research and utilization lignin molecule and aldehyde radical, be directly used in wood adhesive by xylogen, or utilize xylogen to carry out blending and modifying to resol or urea-formaldehyde resin, obtain novel timber adhesive.
Summary of the invention
The present invention is directed to current Plywood Industry using sound flour as the thickening combination of tackiness agent, face raw materials cost constantly to tend towards superiority, and consume the problem of abundance of food resource, thickening combination of a kind of Adhesive for plywood and preparation method thereof is provided, by carrying out modification to flour, especially the waste xylogen in pulp and paper industry is utilized, by the guaiacyl contained by it and the reactive behavior very strong to adjacent air space position to hydroxyphenyl, and contained phenolic hydroxyl group and aldehyde radical can participate in the condensation cured reaction of phenol, formaldehyde, improve the tack of tackiness agent.By the modification to flour, available general Cake Flour replaces the Strong flour of high-quality, both reduces production cost, and can strengthen its glue performance again; Make use of the waste xylogen in pulp and paper industry simultaneously, reduce environmental pollution.
To achieve the above object of the invention, technical scheme of the present invention is as follows:
The thickening combination of Adhesive for plywood of the present invention, be made up of the raw material comprising following weight part:
Flour 60-100, xylogen 30-50, Tapioca Starch 30-50, polyvinyl alcohol 3-5, sial compound 3-5, mould inhibitor 5-10.
Preferably, the thickening combination of described Adhesive for plywood, be made up of the raw material comprising following weight part:
Flour 70-80, xylogen 35-45, Tapioca Starch 35-45, polyvinyl alcohol 3.4-4.5, sial compound 3.5-4.5, mould inhibitor 6-8.
Described mould inhibitor is phenol, Pentachlorophenol, copper 8-quinolinolate, chlorination three second or tributyl tin, copper sulfate or Sodium Fluoride.
Described sial compound is aluminosilicate.
The present invention also provides a kind of preparation method of thickening combination of Adhesive for plywood, comprises the following steps:
A, by polyvinyl alcohol thermosol;
B, flour, xylogen, Tapioca Starch, sial compound to be mixed in proportion, to obtain mixture;
C, in step B mixture, add mould inhibitor, then drip polyvinyl alcohol while stirring, after stirring and get final product.
In described step C, churning time is 20-40 minute.
The using method of the thickening combination of Adhesive for plywood of the present invention is simple, and traditional mask-making technology is consistent.Usage quantity is identical with long patent flour, and also consistent with long patent flour with the schedule of operation of the blending of glue, hot pressing time, pressure, temperature are undertaken by former technological process.Due to its excellent adsorption, the time of colding pressing can correspondingly reduce, and general spring, summer are 1 hours, and autumn and winter is 2 hours, and pressure is 0.95-1MPa.
In use, this glued board wheat flour specially is easy to dispersion in urea-formaldehyde resin adhesive, can and urea-formaldehyde resin adhesive or Phenol aldehyde resin well dissolve each other, can not demixing phenomenon be produced; Its good leveling property, energy even spread in Process of Applying Glue; Simultaneously lignin and Tapioca Starch add the avidity on glue and veneer surface, and better, its precompressed and hot pressing effect are all good than former flour for initial viscosity, and because with the addition of mould inhibitor, not moldy metamorphism when ensureing that it is stored.
Contriver finds through experimental study, even adopt general Cake Flour, by adding Tapioca Starch, and coordinate lignin, add polyvinyl alcohol thermosol stir after form the thickening combination of tackiness agent, all have excellent thickening and strengthen the effect of gluing together, the test through embodiment 7 proves, the present invention has the performance increasing Strength of Plywood.Instant invention overcomes the limitation of the thickening combination that high-quality Strong flour must be adopted as Adhesive for plywood, pass through modification, available general Cake Flour replaces the Strong flour of high-quality, both production cost was reduced, its glue performance can be strengthened again, obtain the sheet that performance is more excellent; Make use of the waste xylogen in pulp and paper industry simultaneously, reduce environmental pollution.
The present invention utilizes Tapioca Starch Substitute For Partial flour at a low price, is conducive to the production cost of the thickening combination reducing sizing agent further.
The present invention because with the addition of mould inhibitor, the problem that the flour of solving over easily goes mouldy as thickening material.
The polyvinyl alcohol of the present invention's application can make flour more pliable and tough, and tackiness is better, and further increases the bonding strength of glued board.
Embodiment
Below by specific embodiment, the present invention is described in detail.
Embodiment 1
The thickening combination of Adhesive for plywood of the present invention, be made up of the raw material comprising following weight part:
Flour 60 kg, xylogen 30 kg, Tapioca Starch 30 kg, polyvinyl alcohol 3 kg, sial compound 3 kg, mould inhibitor 5 kg.
Described mould inhibitor is phenol.
Described sial compound is aluminosilicate.
The preparation method of the thickening combination of Adhesive for plywood of the present invention, comprises the following steps:
A, by polyvinyl alcohol thermosol;
B, flour, xylogen, Tapioca Starch, sial compound to be mixed in proportion, to obtain mixture;
C, in step B mixture, add mould inhibitor, then drip polyvinyl alcohol while stirring, after stirring and get final product.
In described step C, churning time is 20 minutes.
Embodiment 2
The thickening combination of Adhesive for plywood of the present invention, be made up of the raw material comprising following weight part:
Flour 70 kg, xylogen 40 kg, Tapioca Starch 40 kg, polyvinyl alcohol 4 kg, sial compound 4 kg, mould inhibitor 6 kg.
Described mould inhibitor is Pentachlorophenol.
Described sial compound is aluminosilicate.
The preparation method of the thickening combination of Adhesive for plywood of the present invention, comprises the following steps:
A, by polyvinyl alcohol thermosol;
B, flour, xylogen, Tapioca Starch, sial compound to be mixed in proportion, to obtain mixture;
C, in step B mixture, add mould inhibitor, then drip polyvinyl alcohol while stirring, after stirring and get final product.
In described step C, churning time is 25 minutes.
Embodiment 3
The thickening combination of Adhesive for plywood of the present invention, be made up of the raw material comprising following weight part:
Flour 80 kg, xylogen 50 kg, Tapioca Starch 50 kg, polyvinyl alcohol 5 kg, sial compound 5 kg, mould inhibitor 7 kg.
Described mould inhibitor is copper 8-quinolinolate.
Described sial compound is aluminosilicate.
The preparation method of the thickening combination of Adhesive for plywood of the present invention, comprises the following steps:
A, by polyvinyl alcohol thermosol;
B, flour, xylogen, Tapioca Starch, sial compound to be mixed in proportion, to obtain mixture;
C, in step B mixture, add mould inhibitor, then drip polyvinyl alcohol while stirring, after stirring and get final product.
In described step C, churning time is 30 minutes.
Embodiment 4
The thickening combination of Adhesive for plywood of the present invention, be made up of the raw material comprising following weight part:
Flour 90 kg, xylogen 50 kg, Tapioca Starch 50 kg, polyvinyl alcohol 5 kg, sial compound 5 kg, mould inhibitor 8kg.
Described mould inhibitor is triethyltin chloride.
Described sial compound is aluminosilicate.
The preparation method of the thickening combination of Adhesive for plywood of the present invention, comprises the following steps:
A, by polyvinyl alcohol thermosol;
B, flour, xylogen, Tapioca Starch, sial compound to be mixed in proportion, to obtain mixture;
C, in step B mixture, add mould inhibitor, then drip polyvinyl alcohol while stirring, after stirring and get final product.
In described step C, churning time is 35 minutes.
Embodiment 5
The thickening combination of Adhesive for plywood of the present invention, be made up of the raw material comprising following weight part:
Flour 100 kg, xylogen 50 kg, Tapioca Starch 40 kg, polyvinyl alcohol 5 kg, sial compound 5 kg, mould inhibitor 10kg.
Described mould inhibitor is copper sulfate.
Described sial compound is aluminosilicate.
The preparation method of the thickening combination of Adhesive for plywood of the present invention, comprises the following steps:
A, by polyvinyl alcohol thermosol;
B, flour, xylogen, Tapioca Starch, sial compound to be mixed in proportion, to obtain mixture;
C, in step B mixture, add mould inhibitor, then drip polyvinyl alcohol while stirring, after stirring and get final product.
In described step C, churning time is 40 minutes.
Embodiment 6
The thickening combination of Adhesive for plywood of the present invention, be made up of the raw material comprising following weight part:
Flour 80 kg, xylogen 30 kg, Tapioca Starch 40 kg, polyvinyl alcohol 3 kg, sial compound 3 kg, mould inhibitor 9 kg.
Described mould inhibitor is Sodium Fluoride.
Described sial compound is aluminosilicate.
The preparation method of the thickening combination of Adhesive for plywood of the present invention, comprises the following steps:
A, by polyvinyl alcohol thermosol;
B, flour, xylogen, Tapioca Starch, sial compound to be mixed in proportion, to obtain mixture;
C, in step B mixture, add mould inhibitor, then drip polyvinyl alcohol while stirring, after stirring and get final product.
In described step C, churning time is 30 minutes.
Embodiment 7
Glue performance index contrast experiment
1, experiment purpose
The thickening combination of the contrast embodiment of the present invention 1 ~ 6 glued board sizing agent and the glue performance of long patent flour.
2, laboratory sample prepares
Prepare the thickening combination of Adhesive for plywood of the present invention according to embodiment 1 ~ 6 step, and prepare long patent flour.
3, glued board manufacture craft
3.1 prepare the thickening combination of Adhesive for plywood according to embodiment 1 ~ 6 step, and prepare long patent flour portion;
3.2 select hard veneer;
3.3 mixed glue:
Urea-formaldehyde resin adhesive 100 parts, thickening combination/long patent flour 15-20 part of tackiness agent of the present invention, fine particle calcium carbonate 8-15 part, stirs 10-15 minute during impregnation, guarantees to use after mixed glue stirs and glue amount is set in 1.5 hours is finished;
3.4 gluings:
Amount of spread 360g/m
2-420g/m
2;
3.5 assemblies:
Rotary cut venner orthogonal and symmetry by grain direction is configured in central core both sides assembly;
3.6 cold pressing:
The time of colding pressing is set in 50-60 minute, and dry plate is fully permeated.Unit surface pressure setting of colding pressing is 9.5kg/cm
2-10kg/cm
2;
3.7 hot pressing:
Hot pressing is carried out, hot pressing time: hard material 80-90 * second assembly thickness, hot pressing temperature: 110 DEG C-120 DEG C, hot pressing pressure: 10kg/cm within going out to cold pressing latter 3 hours
2-12kg/cm
2;
3.8 side's saws:
After after hot pressing, glued board places 24h, flow process is sawed by the side of entering;
3.9 sandings:
Select the designation of suitable abrasive band.
4, glue performance evaluation
By standard GB/T/T17657-1999 test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels, test plywood character, test result is as shown in table 1.
Table 1 plywood character contrast table
Found out by table 1, the use of the thickening combination of embodiment of the present invention tackiness agent makes Strength of Plywood increase to some extent.
Claims (6)
1. a thickening combination for Adhesive for plywood, is characterized in that the raw material by comprising following weight part is made:
Flour 60-100, xylogen 30-50, Tapioca Starch 30-50, polyvinyl alcohol 3-5, sial compound 3-5, mould inhibitor 5-10.
2. the thickening combination of Adhesive for plywood as claimed in claim 1, is characterized in that: be made up of the raw material comprising following weight part:
Flour 70-80, xylogen 35-45, Tapioca Starch 35-45, polyvinyl alcohol 3.4-4.5, sial compound 3.5-4.5, mould inhibitor 6-8.
3. the thickening combination of Adhesive for plywood as claimed in claim 1, is characterized in that: described mould inhibitor is phenol, Pentachlorophenol, phenyl mercury oleate, copper 8-quinolinolate, chlorination three second or tributyl tin, copper sulfate, mercury chloride or Sodium Fluoride.
4. the thickening combination of Adhesive for plywood as claimed in claim 1, is characterized in that: described sial compound is aluminosilicate.
5. the thickening combination of Adhesive for plywood as claimed in claim 1, it is characterized in that, its preparation method comprises the following steps:
A, by polyvinyl alcohol thermosol;
B, flour, xylogen, Tapioca Starch, sial compound to be mixed in proportion, to obtain mixture;
C, in step B mixture, add mould inhibitor, then drip polyvinyl alcohol while stirring, after stirring and get final product.
6. the thickening combination of Adhesive for plywood as claimed in claim 5, is characterized in that: in described step C, churning time is 20-40 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410570335.7A CN104312490B (en) | 2014-10-23 | 2014-10-23 | A kind of thickener composition of Adhesive for plywood and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410570335.7A CN104312490B (en) | 2014-10-23 | 2014-10-23 | A kind of thickener composition of Adhesive for plywood and preparation method thereof |
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| CN104312490A true CN104312490A (en) | 2015-01-28 |
| CN104312490B CN104312490B (en) | 2017-07-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804676A (en) * | 2015-04-28 | 2015-07-29 | 广西德骏门窗幕墙有限公司 | Joint adhesive for adhering joint of door/window profile and preparation method of joint adhesive |
| CN110605219A (en) * | 2019-04-19 | 2019-12-24 | 郑州轻院产业技术研究院有限公司 | Online hybrid system of gluing agent for wood-based plate and online gluing system |
| CN112391030A (en) * | 2019-08-14 | 2021-02-23 | 中国石油化工股份有限公司 | Epoxy resin based sheet molding compound and preparation method thereof |
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| CN101845280A (en) * | 2009-03-23 | 2010-09-29 | 金玉国 | Plywood compound type filler |
| CN102086361A (en) * | 2010-06-28 | 2011-06-08 | 永港伟方（北京）科技股份有限公司 | High-efficiency extender for environmentally-friendly urea formaldehyde resin, and preparation and use thereof |
| CN102558892A (en) * | 2012-02-10 | 2012-07-11 | 滁州市永和绢云母有限公司 | Filler special for glue mixing of plywood and preparation process of filler |
| CN102925073A (en) * | 2012-11-07 | 2013-02-13 | 南宁市源化生态科技有限公司 | Filler of plywood adhesive |
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2014
- 2014-10-23 CN CN201410570335.7A patent/CN104312490B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845280A (en) * | 2009-03-23 | 2010-09-29 | 金玉国 | Plywood compound type filler |
| CN102086361A (en) * | 2010-06-28 | 2011-06-08 | 永港伟方（北京）科技股份有限公司 | High-efficiency extender for environmentally-friendly urea formaldehyde resin, and preparation and use thereof |
| CN102558892A (en) * | 2012-02-10 | 2012-07-11 | 滁州市永和绢云母有限公司 | Filler special for glue mixing of plywood and preparation process of filler |
| CN102925073A (en) * | 2012-11-07 | 2013-02-13 | 南宁市源化生态科技有限公司 | Filler of plywood adhesive |
Non-Patent Citations (2)
| Title |
|---|
| 李和平: "《木材胶黏剂》", 31 January 2009, 化学工业出版社 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104804676A (en) * | 2015-04-28 | 2015-07-29 | 广西德骏门窗幕墙有限公司 | Joint adhesive for adhering joint of door/window profile and preparation method of joint adhesive |
| CN110605219A (en) * | 2019-04-19 | 2019-12-24 | 郑州轻院产业技术研究院有限公司 | Online hybrid system of gluing agent for wood-based plate and online gluing system |
| CN112391030A (en) * | 2019-08-14 | 2021-02-23 | 中国石油化工股份有限公司 | Epoxy resin based sheet molding compound and preparation method thereof |
| CN112391030B (en) * | 2019-08-14 | 2023-03-03 | 中国石油化工股份有限公司 | Epoxy resin based sheet molding compound and preparation method thereof |
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| CN104312490B (en) | 2017-07-07 |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Nan Inventor after: Wang Shuxin Inventor before: Lin Dongping Inventor before: Tan Gang Inventor before: Zhang Zhiwei Inventor before: Zhao Zhihua Inventor before: Zheng Xiaosong Inventor before: Yang Qinghua Inventor before: Qin Zhidong Inventor before: Huang Dezhi Inventor before: Wei Chunxiu |
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Effective date of registration: 20170612 Address after: 221400, Jiangsu City, Xuzhou province Xinyi high flow Town Xia Tong Village Applicant after: Xinyi Chaohua wood industry limited company Address before: 530100 the Guangxi Zhuang Autonomous Region city Wuming County Industrial Park in Nanning City Applicant before: GUANGXI LINAN WOOD CO., LTD. |
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